JPS5763321A - Stabilization of polyurethane to light - Google Patents
Stabilization of polyurethane to lightInfo
- Publication number
- JPS5763321A JPS5763321A JP55139037A JP13903780A JPS5763321A JP S5763321 A JPS5763321 A JP S5763321A JP 55139037 A JP55139037 A JP 55139037A JP 13903780 A JP13903780 A JP 13903780A JP S5763321 A JPS5763321 A JP S5763321A
- Authority
- JP
- Japan
- Prior art keywords
- foaming agent
- added
- reaction
- specific
- nonhalogen
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Polyurethanes Or Polyureas (AREA)
Abstract
PURPOSE: A specific nonhalogen foaming agent and a specific stabilizer are added to polyisocyanate and polyol and their reaction is effected to markedly improve the light resistance and deterioration on the surface of the titled resin with no use of specific substances.
CONSTITUTION: A volatile nonhalogen compound as a foaming agent, an antioxidant as a stabilizer, preferably 2, 6-di-t-butyl-r-methylphenol, an ultraviolet absorber, preferably a benzotriazole and/or a hydrolysis inhibitor are added to polyisocyanate and polyol and they are subjected to the reaction in a tightly closed vessel by the reaction injection method to produce the objective resin. The foaming agent is a saturated hydrocarbon boiling at 20W100°C such as pentane and/or an oxygencontaining hydrocarbon bearing no active hydrogens such as acetone. Two or more kinds of stabilizers are preferably added.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55139037A JPS5763321A (en) | 1980-10-03 | 1980-10-03 | Stabilization of polyurethane to light |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55139037A JPS5763321A (en) | 1980-10-03 | 1980-10-03 | Stabilization of polyurethane to light |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5763321A true JPS5763321A (en) | 1982-04-16 |
JPS6324525B2 JPS6324525B2 (en) | 1988-05-20 |
Family
ID=15235975
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP55139037A Granted JPS5763321A (en) | 1980-10-03 | 1980-10-03 | Stabilization of polyurethane to light |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5763321A (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5222799A (en) * | 1975-08-14 | 1977-02-21 | Matsushita Electric Ind Co Ltd | Piezoelectric porcelain composition |
-
1980
- 1980-10-03 JP JP55139037A patent/JPS5763321A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5222799A (en) * | 1975-08-14 | 1977-02-21 | Matsushita Electric Ind Co Ltd | Piezoelectric porcelain composition |
Also Published As
Publication number | Publication date |
---|---|
JPS6324525B2 (en) | 1988-05-20 |
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